3 for 3.60 the unit price come out to 1.20
Step-by-step explanation:

This is your answer
Answer:
4n+13
Step-by-step explanation:
combine like terms.
12 of them are black
2 of them is yellow
2 of them are both
The x axis represents time so it can only have positive values.
That means that the quadrant 2 and quadrant 3 are not used.
Given that the temperature (y-axis) can be positive or negative the values are in the quadrants 1 and 4.
Therefore, the answer is Quadrant 1 and 4 only.